Sheets of cast iron; steel sheets; steel pipes; building boards of metal; stop collars of metal for pipes; door stops of metal; strap-hinges of metal; brackets of metal for building; framework of metal for building; pre-fabricated buildings of metal; joists of metal; linings of metal for holding purposes; nuts of metal; pillars of metal for buildings; poles of metal; posts of metal; sheet piles of metal; sheets and plates of metal, trellis of metal for building; tubes of metal